Attachment for dental articulators



Feb. 28, 1928. 1,661,119

W. M. GAMBILL ATTACHMENT FOR DENTAL ARTICULATORS Filed Oct. 4. 1926 s Sheets-Sheet- 1 INVENTOR.

J5 ATTORNEY.

Feb. 28, 1928. 1,661,119

w. M. GAMB lLL ATTACHMENT FOR DENTAL ARTICULATORS Filed Oct. 4, 1926 3 ts-$h t 2 NV EN TOR.

William/J1. Gaznbill;

W2; ATTORNEY.

Feb. 28, 1928.

1,661,119 W. M. GAMBILL ATTACHMENT FOR DENTAL ARTICULATORS Filed Oct. 4, 1926 3 Sheets-Sheet 3 I i////A z IIIIIIIIIII (I) 1 N VEN T01}.

Gambdl/ ATTORNEY.

Patented Feb. 28,1928.

omen STATES WILLIAM my GAMBILL v A 1,661,119 PATENT OFFICE.

, or MERKEL, TEXAS.

.ATTACHIKENT non DENTAL ARTICI'ILATORS.

Application filed October 4, This invention relates to an attachment for [dental articulators, and deslgned primarily for use in connection with the well known forms of Gysi, Hanau and l/Vadsject to provide, inadinan ner as hereinafter f set forth, a dental articulator attachment for imparting combined oscillatory and vertical movements to the articulator during the grinding operation thereof for efiiciently grinding in the teeth.

Further obj ects of the invention are to provide, in a manner as hereinafter set forth, a dental art-iculator. attachment which is c on'iparatively simple in its construction and arrangementtstrong, durablq cornpact, thoroughly efiicient in its use, readily installed with respect tothe dentalarticulator, especially the Gysi, Hanau and Wadsworth types of articulators and comparatively inex eusive to manufacture. a

.Vith the ioregoing and "other objects in view the inventionconsists of the novel con struction, combination and arran ement of parts as here nafter more specifically ;described, and illustrated in the accompanying drawings, wherein is shown an embodiment of the invention, but it is to, be understood that "changes; variations and modifications can be resortedto which i fall within the scope of the claims hereunto appended.

In the drawings wherein like reference characters denote corresponding parts throughout the several views: t Figure 1 is a vertical sectional view of a dental articulator attachment, in accordance with: thisinvention showing the adaptation thereof with respect toa dental articul'ator of the Gysi type. a

1 Figure 2 is a section online 2-2 Figure 1.

Figure 3 is a section on line3-3 Figure 1.

Figure 4 is a detail in vertical section llustrating the upper section of thedriving gear casing or housing. s i

Figure 5 is a sectional elevationofa dental articu lator attachment, in" accordance with. this invention showing the adaptation thereof with respect to a dental articulator 61 116 Wadsworth type. H i

Figure 6 is a section on line 6-6 Figure 6.;

tor of the Hanan type.

i which "the 1926. serialno. 139,435.

Figure 7 is a top plan View of the structure shown in Figure 5.

FigureS is a sect-ion on line 8-'8 Figure 5. Figure 9 is a sectional elevation of a dental articulator attachment, in accordance with this invention, showing the adaptation thereof in connection with a dental articula- Figure 10 is a top plan view of the structure shown n Figure 9.

ure 10 with the gears oinitt ed;

Referring to Figures l to 4, 1 denotes the upper and 2 the lower bow (if adental articulator of the Gysi type. The howl at its outer end is formed with :1 depending sleeve 3 which registers with an opening 4 rovided in theouter end of the how 1. '1 he 0W 2 at its outer end is formed with an upwardly extending outwardly inclinedarin f appropriate length and which terminates in a head6 disposed at a downward inclination throughout and further projecting laterally T0111 each side of the arm 5 as well as ex tending forwardly therefrom. The lower edge of the head 6 is rounded as at 7 to provide a shai' lower corner 8. The upper edge of thel iead 6 is squared, as at 9, but it disposed at an upward and forward inclination. The foregoing elements are of known construction and form part of an articular oi the Gysi type. 1 The dental articuator attachment, as illustrated in Figures 1 to 4 con'iprises a circular case or housing- 10 formedwith a, chamber 11 having a. roun led inneriwall 12, a squared outer wall 13, av pair of sidewalls 14 an; open bottom 15, and atop wall 16 provided at one end with a concaved ortion 17 which is disposed upwardly 1e housing 10 is formed with a socket 18 which opens into that part of the chamber 11 arranged below the concaved portion 17 of the top 16 of the chamber 11. The housing 101s furthermore provided with an opening 19 which opposes the socket1 8, communicates with thefchainher '11 at that side opposite the side into socket 18 opens. An opening 19 extends from the side of the housing 10 to one of the side walls of the chamber 11. The housing 10 isa1so formed units side with a boss 20 through which the opening 19 attends. l The chamber 11 extends diametrically of the housing 10 and projects froth and hold fast devices Figure 11 is a section online 11-11 Figi each side of the axis of the latter, but pro- 'jects a. greater distance from one side of the axis than the other side thereof. The housing 10 is also formed with a vertically disposed opening 21 which extends at right angles to the opening 19 and is positioned between one of the side walls of the chamber 11 and the side of the housing 10.

Positioned against the bottom of the housing 10, is a circular closing plate 22 for the open bottom 15 of the chamber 11. The plate 22 axially thereof has formed integral therewith a depending bearing sleeve 23 which registers with an opening 24 provided in the plate 22 centrally thereof. The late 22 is of the same diameter as the housing 10 and has its edge flush therewith. The

late 22 is secured to the housing 10, by a hold fast device 25 which extends there through and is anchored in the housing 10. The plate 22 is also secured IO the housing 10 by a vertically disposed coupling bolt 25 which connects the attachment to the upper how 1 of the articulator. The bolt 25 extends up through the sleeve 3, the openin 27 formed in the plate 22 and throughthe opening 21 in the housing 10. The head of the bolt 26 abuts against the lower end of the sleeve 3. The shank of the bolt 26 projects above the housing 10 and carries a clamping nut 28 which binds against the top of the housing The means for oscillating the upper bow 1 comprises a vertically disposed driven shaft 29 formed with an angularly disposed lower terminal portion 30 which terminates in a cam edge 31 of spherical contour. The shaft 29 extends up through the sleeve 23, opening 24 and also through an opening formed in the housing 10 at the top thereof, and which communicates with the chamber 11. The upper terminal portion of the shaft 29 is peripherally threaded, as at 33, and secured therewith is a worm pinion 2-34 which revolves within the chamber 11 and carries the shaft 29 therewith. A clamping nut is mounted on theupper end of the shaft 33. The hub of the pinion 34 extends into the opening and the nut 35 also extends into the opening 82and abuts the hub 36 of the pinion 34. The pinion 34 is driven through the medium of a worm 37 which extends transversely at one end of the chamber 11 at that part of the chamber 11 having the top 16 thereof formed with the concaved portion 17. The worm 37 is carried by a drive shaft 38 which is journaled in the opening 19 and also in the socket 18. The driveshaft 38 is connected to a flexible driving member 39 therefor and the latter is operated by any suitable means.

Associated with the cam end 31 of the shaft 29 for the purpose of providing a combined oscillatory and vertical movement or rather combined oscillatory and vertical movements for the shaft 29, imparting a like action to the bow 1, is a V-shaped trough body closed at its forward end by a wall 41. Adjustably engaging with the wall 41 and extending into the trough is a stop or limit screw 42 for the outward movement of the head 81. The trough body is formed with a rearwardly directed depending extension 43 providing a coupling member, and the bottom of said extension 43 is formed with a groove 44 having one of its walls, 1ndicated at 45 overlapping the head 6 at the lower face of the latter. One of the walls of the groove 44, indicated at 46 is extended to'provide a lug 47 formed with an opening 48 having a threaded wall. Threadably en- 7 gaging with the wall of the opening 48, isa

binding screw 49, which abuts the rear edge of the arm 5 and provides means for binding theiupper faceof the head 6, against the base of the groove 44 and the lower face of the head 6, at the forward portion thereof,

against the wall 45 of the groove. The ex-' tension 43, in connection with the head 6 and binding screw 49 detachably connects the trough body rigidly to the lower bow 2 the articulator. vertical movements of the upper bow 1, that is to say which are imparted to the upper bow 1, are obtained, by the lower end of the The oscillatory and revolving shaft 29 travelling against the side walls of the trough 40.

Referring to Figures 5 to 8 of the draw- 1ngs the dental articulator attachment, in accordance with this invention, is shown installed with respect to an articulator of the lVadsworth type and such type of articulator includes an upper how 50 and a lower how 51. The upper bow projects outwardly with respect to the outer end of the lower bow 51. The upper bow at its outer terminal portion 1s formed, centrally thereof, with a lengthwise extending slit or slot 52 open at its outer end and the lower bow 51 is alsoprovided, centrally thereof, at its outerterminal portion with a lengthwise extending slit or slot 53 having its outer end open. The at tachment as illustrated in Figures 5 to 8 includes a housing or casing formed of'an upper and a lower section 54, 55 respectively. The sections 54 and 55 are secured together by hold fast devices 56. The opposed faces of the sections 54, 55 are formed with registering cut away portions to provide a chamber 57 ,a socket 58 and an opening 59 arranged in alinement with the socket 58. The sections are provided with 'a hollow tubular boss forming means 60 which forms a continuation of the opening 59. The bottom of the chamber 57 is indicated. at 60 andthe top thereofat 61. The section 54 axially thereof is formed with a vertically disposed opening 62 which extends through the top 61 of the chamber 57. The'section 55 axially thereof is formed with an opening 63 through thejbottom '60 thereof. Qne end of thechamber 57, isof circular contour as indicated at 64. Formed integral with the section 55 and depending therefrom 1s a tubular sleeve 65which1egisters with the opening 63. T he periphery of the sleeye65 for a portion of its lengthisthreaded seat 66 and said threaded partextends from the lower end of thesleeve65, and terminates at a point removed from the: upine'rend thereof, thereby providing a plan portion 67. The slit or slot 52 in. the upperbcw 50,0f the articulato'r is .of greater width than. the slot or slit 53 in the lower how 51. The housing is mountedupon the ,up or how, 50 and. the sleeve 65 extends throng theslot or sht 52. The plane portion67 ofthe per pheryof the sleeve 65isarranged w thin the sl t or slot 52, seeFigure 6. hreadably engaging with the peripheral threads 66, of the sleeve 65, 1s

a clamping nut 68, which binds againstthe how 50. thereby fixedly secur ng theeas n'g or housing to said how in amanner as shown inFigures5and6. V i The, attachment shown In Figures 5, 6and 7 includes a verticallygdispofsia'd revoluble shaft 69 constructed in the same manner as the shaft 29, a dop fl dby m sfls m to that shown in Figure l ffor 01121181111] the shaft 29. The operating means .for thej s aft 69. is provided withthesarne reference characters as the operating means shown 1n. Flgure 1 forthc shaft 29 This statementalso applies to the lower end of the shaft 69 The drive shaft 38 extends through the opening 59, across the chamber 57 and is 1011I'I1fll8d into the socket 58.; 7. g 1 a \Vith respect to the attachment shown n Figures 5 to 8, the troughbody employed for imparting oscillatory and vert cal movements to the shaft 67 is the same as that shown in Figures 1 and 3, with tlllSfiXQP- tion that the coupling member which depends from the trough body is differently constructed from the coupling member-s3. In Figures 5, 6 and 8 the trough body indicated at 50, the adjustable stop screw at 42 and the coupling arm at 7 O and the latter consists of a vertically disposed cylindrical bar formed integral with the bottom of the trough body 40 and provided with peripheral threads. The trough body 40 is seated upon the lower how 51, the coupling member 70 extends through the slot or slit 53, and carries on its lower end a clamping nut 71, which binds against the lower face of the how 51 whereby the trough body 40 is fixedly secured to the lower bow. Otherwise than that as stated the construction shown in Figures 5. 6, 7 and 8 is the same as that shown and referred to in connection with Fgures 1, 2 and 4 of the drawings.

Figures 9 toll illustrate the adaptation of a dental articulator. attachment, in accordance with this invention, with an articulator of the Hanan type and an articulator of such type includes. an upper how 72 and a lower'bo w 73., The outer end of the how 72, is formed with a vertical opening 74 and with a depending collar 7 5 which registers with the opening 74. A bindingscrew 7 6 is ,carricdby the collar 7 5. The lower bow/73 has its outer end provided with a vertical opening 77, and a depending hollow boss or collar '78 which registers with the opening 77,. The attachment illustrated in Figures 9 and 11 includes the same construction of trough body as that illustrated in Figure 5.

The trough body is indicatedat 79, the coupling extension which depends therefrom extends through the opening 77 and the boss or collar 78, and carries a lock nut 81 on its lower-end. The adjustable stop screw carried by the trough body 79 is indicated at 82. The housing for the driving gear for the vertically"disposed re'volublc shaft 82 is constructed in the same manner as the housing shown in Figure 5, with this exception that the sleeve 83 through which extends the shaft 82is not provided with peripheral threads. Further the sleeve 82; at its top is formed witlna laterally extending annulus flange 84 whichis integral with the bottom or lower section of the housing for the. driving means for the shaft 82. The

flan e 84 is seatedzupon the upper faced the liow72 and the binding screw 76 fixedly securessleeve 83 to said how 72. The housing 85 is constructed similar to the housing shown in F igure" 5 and the driving means for the shaft 82 is similar in construction as that shown in Figures 5 and 6 for the shaft 69. The shaft 82forniing a part of. the attachment, as shown in Figure 9,,has its lower end constructed differently flOITl. the lower end of the shaft 29 or 69, but said lower end provides a cam. means to impart combined oscillatory and. vertical movements tothe shaft 82. The lower end. of the shaft 82 is enlarged, as at 86, and the enlargement has a pointed terminus87, and disposed at right angles to the shaft 82, above the pointed terminus 87, is a cylindrical lug 88 having atapered end 89 and which functions to ride against the walls of the trough body 79, for the purpose of oscilment andwhich will be simultaneous with the oscillatory movement. In Figure 11 the housing 85 is shown provided with openings 90 to receive hold fast devices. The axial opening in the upper section of the housing 85 is indicated section at 92 the latter registers with the sleeve 83. The housing 85 is provided with a chamber 93 of the same contour as the leesv at 91 and that in the lower chamber 11 or 7 and the housing 85 is also ill provided with a socket 94 and an opening 95. The driving means for the shaft 82, is provided with the same reference characters as that employed in Figure 1 to indicate the driving means for the shaft 29. g

It is thought that many advantages of a dental articulator attachment, in accordance with this invention, can be readily understood, and although the preferred embodiments of the invention are as illustrated and described, yet it is to be understood that changes in the details of construction there of can be had which will fall within the scope of the invention as claimed.

What I claim is:

1. Means for imparting combined oscillatory and vertical movements to the upper bow of an articulator comprising the combination wit-h the upper and a lower articulator bow, each of said bows having one end formed with an opening and a depending collar registering with an opening, of a housing mounted on said upper bow and provided with a sleeve extending through the opening and collar of the upper bow, means carried by the collar of the upper bow for securing the housing therewith, a trough mounted upon the lower bow and provided with a depending peripherally threaded coupling member extending through the opening and collar of the lower now, means carried by said coupling memher for clamping the trough to the lower how, a vertically disposed revoluble shaft extending through said housing and having a cam means on its lower end coacting with the walls of the trough for imparting combined oscillatory and vertical movements to said upper bow, driving means for said shaft mounted within said housing, and means projecting from the housing for operating said driving means.

2. Means for imparting combined oscillatory and vertical movements to the upper bow of an articulator comprising a housing adapted to be mounted upon the upper bow, means for clamping the housing to the upper bow, a trough adapted to be mounted upon the lower bow of the articulator and positioned below said housing, a coupling memberdepending from said trough, means carried by said coupling member for clamping the trough to the lower how, a revoluble vertically disposed shaft extending through said housing and having its lower end provided with cam means coacting with the walls of the trough for imparting combined oscillatory and vertical movements to said upper bow, driving means for said shaft within said housing, and means projecting from the housing andfexteriorly of the upper bow for operating said driving means.

3. Means for imparting combined oscillatory and vertical movements to the upper bow of an articulator COIDPl'lSlDg a housing .mounted on the top of an end terminal portion of the upper bow, means for fixedly securing said housing to said upper bow, said housing extended above and from the upper bow, a trough adapted to be connected to the lower bow and. positioned below said housing, said trough including a depending coupling member, means carried by said coupling member and engaging with the lower bow for fixedly securing the trough there to, a vertically disposed revoluble shaft eX- tending through said housing and having its lower end provided with a cam means coacting with the walls of the trough for imparting combined oscillatory and vertical movements to the upper bow, means arranged within said housing for driving said shaft, and means projecting from the housing and arranged eXt-eriorly of the upper bow for operating said driving means.

In testimony whereof, I affix my signature hereto.

WILLIAM M. GAMBILL. I 

